Student Database Design by Software

I have attached the relational schema for the database. I'd be grateful if someone who knows about proper design could tell me if its ok (from the point of view referential integrity and normalization etc). ...

Are you a programmer? Come work here!
Candidates should have a minimum of three years experience in the game industry and should be able to teach in at least three or more of the following areas: C++, Java, database design, and game engine scripting/programming. ...

Online Social Network for Parents-387586
The database will be searchable by date of event, age appropriateness of the event, location (distance), type of activity (indoor, outdoor, educational, entertainment, culture, etc.). The database must be programmed to allow for cross ...